The structure, device physics, and material properties of thin film electroluminescent displays

Thin film electroluminescent (TFEL) displays are complex optoelectronic devices with challenging material requirements. The multilayer device structure includes two electrodes (one metallic and one transparent), two insulators, and a semiconducting ‘phosphor’ layer. Each layer has unique electronic...

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Bibliographic Details
Published in:Materials science & engineering. R, Reports : a review journal Reports : a review journal, 1998, Vol.21 (4), p.171-219
Main Authors: Rack, Philip D., Holloway, Paul H.
Format: Article
Language:English
Subjects:
Applied sciences
Brightness
Display
Electroluminescence
Electronics
Exact sciences and technology
Flat panel displays
Full color displays
Insulators
Luminescent transitions
Phosphor
Strontium sulfide
Thin film
Zinc sulfide
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Summary:Thin film electroluminescent (TFEL) displays are complex optoelectronic devices with challenging material requirements. The multilayer device structure includes two electrodes (one metallic and one transparent), two insulators, and a semiconducting ‘phosphor’ layer. Each layer has unique electronic and optical properties that must be satisfied for device operation. In this article, we review the device structure, the electrical and optical device physics, and the material properties of TFEL displays. Particular attention is given to the phosphor layer properties and the radiative recombination phenomenon that is responsible for luminescence. The current status of the red, green, blue and white TFEL phosphors is also reviewed, and the current and future applications are discussed.
ISSN:0927-796X
1879-212X
DOI:10.1016/S0927-796X(97)00010-7